Fishermen from Pamban in Tamil Nadu's Ramanathapuram district caught a rare deep-sea creature popularly known as the 'Doomsday fish'. Experts later identified it as an Oarfish, a deep-sea species seldom seen near the surface. The fish has earned the name 'Doomsday fish' due to a long-standing Japanese belief linking its sightings to impending earthquakes or natural calamities.